Consider the following two price index series:



Year 1995 = 100
2002 80
2003 86
2004 90
2005 94



Year 2000 = 100
2005 115
2006 121
2007 130
2008 133


Splice the two index series to form one continuous series with 1995 as the base year. The index for 2004 is:

80


90


115


122.34

1 answer

To splice the two index series, we need to adjust the second series to have 2004 as the last year before splicing. The index for 2004 in the second series (2000 = 100) can be calculated by multiplying the index for 2005 by the ratio of the index for 2004 to the index for 2005 in the first series (1995 = 100).

Index for 2004 in the first series = 90
Index for 2005 in the first series = 94
Index for 2005 in the second series = 115

Index for 2004 in the second series = Index for 2005 in the second series * (Index for 2004 in the first series / Index for 2005 in the first series)
Index for 2004 in the second series = 115 * (90/94)
Index for 2004 in the second series = 115 * 0.9574
Index for 2004 in the second series = 110.15

Therefore, the correct answer is approximately 110.15, which would round to 110 when considering significant figures. So, the index for 2004 is 110.